Abstraction of chloride from the Pd complex {[eta(3)-2,6-((Bu2PCH2)-Bu-1)(2)C6H3)]PdCl with AgBF4 in THF gives {[eta(3)-2,6-((Bu2PCH2)-Bu-1)(2)C6H3)]Pd(THF)}+BF4-. Attemped crystallization of this THF complex produced the aqua complex {[eta(3)-2,6-((Bu2PCH2)-Bu-1)(2)C6H3)]Pd(OH2))+BF4-. Crystal structures of two crystalline forms of this compound are reported. In In {[eta(3)-2,6-((Bu2PCH2)-Bu-1)(2)C6H3)]Pd(OH2)}(+) BF4- THF, one hydrogen of the water is hydrogen bonded to the oxygen of the THF, and the other hydrogen is hydrogen bonded to an F of the BF4- anion. Another crystalline form has no THF, but has both of the hydrogens of water hydrogen bonded to different BF4- anions, such that two different BF4- anions bridge two {[eta(3)-2,6-((Bu2PCH)-Bu-1)(2)C6H3)]Pd(OH2)}(+) cations. A crystal structure is also reported for the palladium chloride complex [eta(3)-2,6((Bu2PCH2)-Bu-1)(2)C6H3)]PdCl. (C) 2002 Elsevier Science B.V. All rights reserved.